Steric influence of the 6-methyl group on the molecular and crystal structures of copper(II) chloride complexes with 2-(N-acetylamino)-6- methylpyridine

Anton I. Smolentsev, Elisaveta V. Lider, Ludmila G. Lavrenova, Liliya A. Sheludyakova, Artem S. Bogomyakov, Sergei F. Vasilevsky

Результат исследований: Материалы для журналаСтатья

5 Цитирования (Scopus)

Аннотация

New coordination compounds of copper(II) chloride with 2-(N-acetylamino)-6- methylpyridine (L) of the compositions [Cu2L2Cl 4] (1), [CuL(H2O)Cl2]·L (1a), and [CuL2Cl][CuLCl3]·C2H5OH (2) have been prepared by the reactions between ethanol solutions of L and ethanol solutions of CuCl2·2H2O at different Cu:L ratios. The compounds have been characterized by a set of methods including elemental analysis, IR-spectroscopy, single-crystal X-ray diffraction analysis, and magnetic susceptibility measurements in the range 5-300 K (for 1). The crystal structures of 1 and 1a revealed distorted square-pyramidal geometry around Cu(II) centers, while in 2 both distorted square-pyramidal and trigonal-bipyramidal coordinations are present. L acts as a bidentate chelate ligand bound to the metal center through the pyridine N atom and the acetyl O atom. The results of the study demonstrate that the presence of 6-methyl substituent in L provides a high steric hindrance, precluding the formation of complexes with a distorted octahedral coordination of Cu(II).

Язык оригиналаАнглийский
Страницы (с-по)81-88
Число страниц8
ЖурналPolyhedron
Том77
DOI
СостояниеОпубликовано - 27 июл 2014
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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